content: /**
   * Copyright (c) 2016-present, RxJava Contributors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
   * compliance with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under the License is
   * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
   * the License for the specific language governing permissions and limitations under the License.
   */
  package io.reactivex.flowable.internal.utils;
  
  import static org.junit.Assert.assertTrue;
  
  import java.io.IOException;
  import java.util.concurrent.atomic.AtomicInteger;
  
  import org.junit.Test;
  import org.reactivestreams.*;
  
  import hu.akarnokd.reactivestreams.extensions.RelaxedSubscriber;
  import io.reactivex.common.*;
  import io.reactivex.common.exceptions.TestException;
  import io.reactivex.common.internal.utils.AtomicThrowable;
  import io.reactivex.flowable.internal.subscriptions.BooleanSubscription;
  import io.reactivex.flowable.subscribers.TestSubscriber;
  
  public class HalfSerializerSubscriberTest {
  
      @Test
      public void utilityClass() {
          TestCommonHelper.checkUtilityClass(HalfSerializer.class);
      }
  
      @Test
      @SuppressWarnings({ "rawtypes", "unchecked" })
      public void reentrantOnNextOnNext() {
          final AtomicInteger wip = new AtomicInteger();
          final AtomicThrowable error = new AtomicThrowable();
  
          final Subscriber[] a = { null };
  
          final TestSubscriber ts = new TestSubscriber();
  
          RelaxedSubscriber s = new RelaxedSubscriber() {
              @Override
              public void onSubscribe(Subscription s) {
                  ts.onSubscribe(s);
              }
  
              @Override
              public void onNext(Object t) {
                  if (t.equals(1)) {
                      HalfSerializer.onNext(a[0], 2, wip, error);
                  }
                  ts.onNext(t);
              }
  
              @Override
              public void onError(Throwable t) {
                  ts.onError(t);
              }
  
              @Override
              public void onComplete() {
                  ts.onComplete();
              }
          };
  
          a[0] = s;
  
          s.onSubscribe(new BooleanSubscription());
  
          HalfSerializer.onNext(s, 1, wip, error);
  
          ts.assertValue(1).assertNoErrors().assertNotComplete();
      }
  
      @Test
      @SuppressWarnings({ "rawtypes", "unchecked" })
      public void reentrantOnNextOnError() {
          final AtomicInteger wip = new AtomicInteger();
          final AtomicThrowable error = new AtomicThrowable();
  
          final Subscriber[] a = { null };
  
          final TestSubscriber ts = new TestSubscriber();
  
          RelaxedSubscriber s = new RelaxedSubscriber() {
              @Override
              public void onSubscribe(Subscription s) {
                  ts.onSubscribe(s);
              }
  
              @Override
              public void onNext(Object t) {
                  if (t.equals(1)) {
                      HalfSerializer.onError(a[0], new TestException(), wip, error);
                  }
                  ts.onNext(t);
              }
  
              @Override
              public void onError(Throwable t) {
                  ts.onError(t);
              }
  
              @Override
              public void onComplete() {
                  ts.onComplete();
              }
          };
  
          a[0] = s;
  
          s.onSubscribe(new BooleanSubscription());
  
          HalfSerializer.onNext(s, 1, wip, error);
  
          ts.assertFailure(TestException.class, 1);
      }
  
      @Test
      @SuppressWarnings({ "rawtypes", "unchecked" })
      public void reentrantOnNextOnComplete() {
          final AtomicInteger wip = new AtomicInteger();
          final AtomicThrowable error = new AtomicThrowable();
  
          final Subscriber[] a = { null };
  
          final TestSubscriber ts = new TestSubscriber();
  
          RelaxedSubscriber s = new RelaxedSubscriber() {
              @Override
              public void onSubscribe(Subscription s) {
                  ts.onSubscribe(s);
              }
  
              @Override
              public void onNext(Object t) {
                  if (t.equals(1)) {
                      HalfSerializer.onComplete(a[0], wip, error);
                  }
                  ts.onNext(t);
              }
  
              @Override
              public void onError(Throwable t) {
                  ts.onError(t);
              }
  
              @Override
              public void onComplete() {
                  ts.onComplete();
              }
          };
  
          a[0] = s;
  
          s.onSubscribe(new BooleanSubscription());
  
          HalfSerializer.onNext(s, 1, wip, error);
  
          ts.assertResult(1);
      }
  
      @Test
      @SuppressWarnings({ "rawtypes", "unchecked" })
      public void reentrantErrorOnError() {
          final AtomicInteger wip = new AtomicInteger();
          final AtomicThrowable error = new AtomicThrowable();
  
          final Subscriber[] a = { null };
  
          final TestSubscriber ts = new TestSubscriber();
  
          RelaxedSubscriber s = new RelaxedSubscriber() {
              @Override
              public void onSubscribe(Subscription s) {
                  ts.onSubscribe(s);
              }
  
              @Override
              public void onNext(Object t) {
                  ts.onNext(t);
              }
  
              @Override
              public void onError(Throwable t) {
                  ts.onError(t);
                  HalfSerializer.onError(a[0], new IOException(), wip, error);
              }
  
              @Override
              public void onComplete() {
                  ts.onComplete();
              }
          };
  
          a[0] = s;
  
          s.onSubscribe(new BooleanSubscription());
  
          HalfSerializer.onError(s, new TestException(), wip, error);
  
          ts.assertFailure(TestException.class);
      }
  
      @Test
      public void onNextOnCompleteRace() {
          for (int i = 0; i < 500; i++) {
  
              final AtomicInteger wip = new AtomicInteger();
              final AtomicThrowable error = new AtomicThrowable();
  
              final TestSubscriber<Integer> ts = new TestSubscriber<Integer>();
              ts.onSubscribe(new BooleanSubscription());
  
              Runnable r1 = new Runnable() {
                  @Override
                  public void run() {
                      HalfSerializer.onNext(ts, 1, wip, error);
                  }
              };
  
              Runnable r2 = new Runnable() {
                  @Override
                  public void run() {
                      HalfSerializer.onComplete(ts, wip, error);
                  }
              };
  
              TestCommonHelper.race(r1, r2, Schedulers.single());
  
              ts.assertComplete().assertNoErrors();
  
              assertTrue(ts.valueCount() <= 1);
          }
      }
  
      @Test
      public void onErrorOnCompleteRace() {
          for (int i = 0; i < 500; i++) {
  
              final AtomicInteger wip = new AtomicInteger();
              final AtomicThrowable error = new AtomicThrowable();
  
              final TestSubscriber<Integer> ts = new TestSubscriber<Integer>();
  
              ts.onSubscribe(new BooleanSubscription());
  
              final TestException ex = new TestException();
  
              Runnable r1 = new Runnable() {
                  @Override
                  public void run() {
                      HalfSerializer.onError(ts, ex, wip, error);
                  }
              };
  
              Runnable r2 = new Runnable() {
                  @Override
                  public void run() {
                      HalfSerializer.onComplete(ts, wip, error);
                  }
              };
  
              TestCommonHelper.race(r1, r2, Schedulers.single());
  
              if (ts.completions() != 0) {
                  ts.assertResult();
              } else {
                  ts.assertFailure(TestException.class);
              }
          }
      }
  
  }
  